The volume of a box with a square base will be
Since the volume is which means
The surface area is ....
I have a question in my assignment where i am not how to answer it.
A rectangular box with volume 7 cubic metres has a square base with side length x metres. Express the surface area S of the box as a function of x.
Surface area S = ?
I also have these two questions that are along the same lines that i also don't know how to properly solve.
2) The diameter of a spherical balloon is 12 cm. Air is pumped into the balloon to increase its diameter by x cm. Express the increase in volume of air inside the balloon as a function of x.
Note. The volume of a sphere with radius R is V=34 R^3
Answer: The increase in volume is equal to ? cm^3
3) A rectangle has its base lying on the x− axis and its upper corners on the parabola y=41−x2. If the upper right corner is (st), express the area A of the rectangle as a function of s.
The area A = ?
Thank you in advance.
2) Get the old volume, R = 6. Get the new volume, R = 6 + (x/2). Get the difference in volume. Note: The formula you posted for the volume of a sphere is wrong. Use Google to find the correct formula.
3) Draw a picture. Width is 2s (why?). Height is h = t = 41 - s^2 (why?). A = ....